Seaford, New York, USA. June 3, 2015. Governor Andrew Cuomo, Nassau County Executive Ed Mangano, and others speak at press conference in support of extending the NY Property Tax Cap. At the bi-partisan event at Knights of Columbus Hall, over a hundred area residents and officials urged an extension of the property tax cap before the state legislative session ends on June 17. The NY Property Tax Cap is set to expire June 2016, but is legally linked to NYC rent-control regulations set to expire this month.